Hongguo Downloader — bundled FFmpeg notice
===========================================

This application bundles FFmpeg (https://ffmpeg.org) as a separate, unmodified
executable that the application invokes as a subprocess. FFmpeg is not linked
into the application; it is aggregated with it.

FFmpeg is free software. Depending on the build shipped here, FFmpeg is licensed
under either the GNU Lesser General Public License (LGPL) version 2.1 or later,
or — when built with GPL components such as libx264 / libx265 — the GNU General
Public License (GPL) version 2 or later. The full license text is included in
this folder as the FFmpeg build's own LICENSE.txt / COPYING files.

If a GPL build is shipped (it includes the x264 H.264 encoder used by the
"Convert to H.264" feature), the corresponding source code for that exact FFmpeg
build, and for x264, is available. Written offer for source:

  Hongguo Downloader will provide, on request, the complete corresponding source
  code for the bundled FFmpeg and x264 builds for a period of three (3) years.
  Contact: support via the Hongguo Downloader Telegram bot (@HongguoDownloaderBot).

The upstream sources are also publicly available:
  - FFmpeg:  https://ffmpeg.org/download.html   (and the packager's source, e.g.
             https://github.com/BtbN/FFmpeg-Builds or https://www.gyan.dev/ffmpeg/)
  - x264:    https://www.videolan.org/developers/x264.html

No warranty is provided for the bundled FFmpeg to the extent permitted by law.
